Metabolite ratio in different brain regions | Ipsilateral side of the epileptogenic zone | Contralateral side | t | P value | |
---|---|---|---|---|---|
Suggested zone of focal epileptogenic activity and its mirrored non-epileptic contralateral region | NAA/Cho | 0.94 ± 0.08 | 1.21 ± 0.18 | 5.341 | < 0.02* |
NAA/Cr | 0.86 ± 0.11 | 1.28 ± 0.14 | 1.181 | 0.01* | |
NAA/(Cho+Cr) | 0.54 ± 0.62 | 0.93 ± 0.07 | 21.540 | < 0.001* | |
MI/NAA | 1.03 ± 0.21 | 0.72 ± 0.10 | 2.068 | 0.044* | |
Glx/NAA | 1.56 ± 1.25 | 1.23 ± 1.12 | 18.451 | < 0.001* | |
Glx/Cr | 1.44 ± 0.24 | 1.21 ± 0.44 | 3.441 | < 0.018* | |
Cerebral areas of seizure spread | NAA/Cho | 1.23 ± 0.18 | 1.25 ± 0.18 | 2.344 | 0.163 |
NAA/Cr | 1.27 ± 0.14 | 1.29 ± 0.14 | 3.235 | 0.132 | |
NAA/(Cho+Cr) | 0.84 ± 0.14 | 0.87 ± 0.15 | 5.416 | 0.072 | |
MI/NAA | 0.50 ± 0.01 | 0.69 ± 0.19 | 2.178 | < 0.01* | |
Glx/NAA | 1.28 ± 15 | 1.26 ± 14 | 1.246 | 0.120 | |
Glx/Cr | 1.23 ± 0.26 | 1.22 ± 0.26 | 1.521 | 0.641 | |
Thalamus | NAA/Cho | 1.19 ± 0.05 | 1.22 ± 0.06 | 35.254 | < 0.11 |
NAA/Cr | 1.23 ± 0.11 | 1.26 ± 0.12 | 24.351 | < 0.43 | |
NAA/(Cho+Cr) | 0.60 ± 0.12 | 0.92 ± 0.13 | -4.73 | < 0.001* | |
MI/NAA | 0.67 ± 0.13 | 0.72 ± 0.03 | 26.081 | 0.03* | |
Glx/NAA | 1.49 ± 20 | 1.27 ± 19 | 1.246 | < 0.02* | |
Glx/Cr | 1.40 ± 0.32 | 1.37 ± 0.31 | 1.521 | 0.064 | |
Basal ganglia | NAA/Cho | 1.24 ± 0.07 | 1.26 ± 0.08 | 1.870 | 0.910 |
NAA/Cr | 1.27 ± 0.10 | 1.25 ± 0.11 | 0.371 | 0.865 | |
NAA/(Cho+Cr) | 0.84 ± 0.12 | 0.87 ± 0.13 | 0.521 | 0.160 | |
MI/NAA | 0.81 ± 0.01 | 0.79 ± 0.02 | 0.462 | 0.754 | |
Glx/NAA | 1.25 ± 24 | 1.23 ± 23 | 0.162 | 0.110 | |
Glx/Cr | 1.25 ± 0.39 | 1.23 ± 0.37 | 1.253 | 0.064 | |
Cerebellar hemispheres | NAA/Cho | 1.27 ± 0.11 | 1.23 ± 0.10 | 1.355 | 0.183 |
NAA/Cr | 1.28 ± 0.17 | 1.25 ± 0.16 | 1.095 | 0.279 | |
NAA/ (Cho+Cr) | 0.86 ± 0.16 | 0.82 ± 0.15 | 0.731 | 0.468 | |
MI/NAA | 0.76 ± 0.12 | 0.77 ± 0.11 | 1.651 | 0.124 | |
Glx/NAA | 1.27 ± 20 | 1.29 ± 20 | 0.162 | 0.210 | |
Glx/Cr | 1.23 ± 0.40 | 1.26 ± 0.39 | 1.253 | 0.064 |